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基于实测轴载谱的重载沥青路面交通参数

, PP. 13-18

Keywords: 道路工程,交通参数,实测轴载谱,重载沥青路面,设计轴载

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Abstract:

为更准确地确定重载沥青路面设计的交通参数,首先提出了车辆分类方法,然后通过调查收集京沪高速公路鲁苏省界的车辆类型及轴载数据和长深高速公路滨州段的动态称重数据,创建了车辆轴载信息数据库.根据数据库查询统计,分析了沥青路面设计的交通参数,包括车辆类型分布系数、卡车月调节系数、卡车小时分布系数、轴数系数和轴载分布系数,并给出了相应的推荐值.最后分别统计分析了前轴、双轮组单轴、双联轴和三联轴的轴载累积分布率.结果表明,在进行路面结构设计时,宜根据交通等级和类似道路车辆轴载统计确定设计代表荷载;基于实测轴载分析提出以单轴160kN作为重载交通设计轴载,以双联轴380kN作为验算荷载.

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